diff --git a/addons/web/static/src/legacy/frontend/rainbowman/rainbow_man.js b/addons/web/static/src/legacy/frontend/rainbowman/rainbow_man.js
index 9cd1346b40c..7816a58abad 100644
--- a/addons/web/static/src/legacy/frontend/rainbowman/rainbow_man.js
+++ b/addons/web/static/src/legacy/frontend/rainbowman/rainbow_man.js
@@ -35,6 +35,7 @@ var RainbowMan = Widget.extend({
             fadeout: 'medium',
             img_url: '/web/static/img/smile.svg',
             message: _t('Well Done!'),
+            messageIsHtml: false,
         });
         this.delay = rainbowDelay[this.options.fadeout];
     },
@@ -61,7 +62,16 @@ var RainbowMan = Widget.extend({
                 }, 600); // destroy only after fadeout animation is completed
             }, this.delay);
         }
-        this.$('.o_reward_msg_content').append(this.options.message);
+        let message = this.options.message;
+        if (!this.options.messageIsHtml) {
+            if (message instanceof jQuery) {
+                message = message.text();
+            } else if (message instanceof Element) {
+                message = message.textContent;
+            }
+            message = document.createTextNode(message);
+        }
+        this.$('.o_reward_msg_content').append(message);
         return this._super.apply(this, arguments);
     }
 });
diff --git a/addons/web/static/src/legacy/frontend/rainbowman/rainbowman_service.js b/addons/web/static/src/legacy/frontend/rainbowman/rainbowman_service.js
index 86f61508d1b..458cc75167f 100644
--- a/addons/web/static/src/legacy/frontend/rainbowman/rainbowman_service.js
+++ b/addons/web/static/src/legacy/frontend/rainbowman/rainbowman_service.js
@@ -7,7 +7,5 @@ import { bus } from "web.core";
  * isn't a parent of the current context. Like in the tour manager in website. 
  */
 bus.on("show-effect", this, (payload) => {
-  new RainbowMan({ message: payload.message, fadeout: payload.fadeout }).appendTo(
-    document.getElementsByTagName("body")[0]
-  );
+    new RainbowMan(payload).appendTo(document.getElementsByTagName("body")[0]);
 });
diff --git a/addons/web/static/src/webclient/effects/effect_service.js b/addons/web/static/src/webclient/effects/effect_service.js
index 11d2dd1f00f..cf344dd08af 100644
--- a/addons/web/static/src/webclient/effects/effect_service.js
+++ b/addons/web/static/src/webclient/effects/effect_service.js
@@ -54,6 +54,8 @@ export const effectService = {
          *    Can be a simple a string
          *    Can be a string representation of html (prefer component if you want interactions in the DOM)
          *    Can be a function returning a string (like _t)
+         * @param {boolean} [params.messageIsHtml]
+         *    The message can be a string representation of html but it needs to be marked as well
          * @param {"slow"|"medium"|"fast"|"no"} [params.fadeout="medium"]
          *    Delay for rainbowman to disappear
          *    'fast' will make rainbowman dissapear quickly
@@ -72,6 +74,7 @@ export const effectService = {
                 fadeout: params.fadeout,
                 id: ++effectId,
                 message: convertRainBowMessage(params.message) || env._t("Well Done!"),
+                messageIsHtml: params.messageIsHtml || false,
                 Component: params.Component,
                 props: params.props,
             });
diff --git a/addons/web/static/src/webclient/effects/rainbow_man.xml b/addons/web/static/src/webclient/effects/rainbow_man.xml
index dbc1abf6b82..cf38ce7df0a 100644
--- a/addons/web/static/src/webclient/effects/rainbow_man.xml
+++ b/addons/web/static/src/webclient/effects/rainbow_man.xml
@@ -35,7 +35,10 @@
                     <div class="o_reward_msg">
                         <div class="o_reward_msg_card">
                             <div class="o_reward_msg_content">
-                                <t t-if="!props.Component" t-raw="props.message" />
+                                <t t-if="!props.Component">
+                                    <t t-if="props.messageIsHtml" t-raw="props.message" />
+                                    <t t-else="" t-esc="props.message" />
+                                </t>
                                 <t t-else="" t-component="props.Component" t-props="props.props"/>
                             </div>
                             <div class="o_reward_shadow_container">
diff --git a/addons/web/static/tests/webclient/effects/rainbow_man_tests.js b/addons/web/static/tests/webclient/effects/rainbow_man_tests.js
index 820c2f599ce..892048171e3 100644
--- a/addons/web/static/tests/webclient/effects/rainbow_man_tests.js
+++ b/addons/web/static/tests/webclient/effects/rainbow_man_tests.js
@@ -27,6 +27,7 @@ QUnit.module("RainbowMan", (hooks) => {
     hooks.beforeEach(async () => {
         rainbowManDefault = {
             message: "<div>Congrats!</div>",
+            messageIsHtml: true,
             fadeout: "nextTick",
         };
         target = getFixture();
@@ -72,4 +73,19 @@ QUnit.module("RainbowMan", (hooks) => {
         assert.containsNone(target, ".o_reward");
         parent.destroy();
     });
+
+    QUnit.test("rendering a rainbowman with an escaped message", async function (assert) {
+        assert.expect(3);
+        const env = await makeTestEnv({ serviceRegistry });
+        const parent = await mount(Parent, { env, target });
+        env.services.effect.add("rainbowman", { ...rainbowManDefault, messageIsHtml: false });
+        await nextTick();
+        assert.containsOnce(parent.el, ".o_reward");
+        assert.containsOnce(parent.el, ".o_reward_rainbow");
+        assert.strictEqual(
+            parent.el.querySelector(".o_reward_msg_content").textContent,
+            "<div>Congrats!</div>"
+        );
+        parent.destroy();
+    });
 });
diff --git a/addons/web_tour/static/src/js/tour_manager.js b/addons/web_tour/static/src/js/tour_manager.js
index 5ccdf631fac..d85a89e426f 100644
--- a/addons/web_tour/static/src/js/tour_manager.js
+++ b/addons/web_tour/static/src/js/tour_manager.js
@@ -432,7 +432,12 @@ return core.Class.extend(mixins.EventDispatcherMixin, ServicesMixin, {
                 message = _t('<strong><b>Good job!</b> You went through all steps of this tour.</strong>');
             }
             const fadeout = this.tours[tour_name].fadeout;
-            core.bus.trigger('show-effect', {type: "rainbowman", message, fadeout});
+            core.bus.trigger('show-effect', {
+                type: "rainbowman",
+                message,
+                fadeout,
+                messageIsHtml: true,
+            });
         }
         this.tours[tour_name].current_step = 0;
         local_storage.removeItem(get_step_key(tour_name));